PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14099-51Bellows Assembly,valve Positione

Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives · NSN 4820-01-218-2580 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-218-2580 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-218-2580. Primary manufacturer part number: 14099-51.
Features
  • Bellows Assembly,valve Positione — FSC 4820
  • General Characteristics Item Description: WITH PILOT; CONSISTS OF BELLOWS ROD,SHELL,2 BELLOWS,SPRING SEAT,PLUNGER NUT,PILOT SPRING,BALL,BASE FORGING,PLUNGER,2 WASHERS,SCREW
  • 6 verified cross-references
  • Primary manufacturer: Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Bellows Assembly,valve Positione, cataloged under National Stock Number 4820-01-218-2580, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-218-2580
Primary Part Number14099-51
Item NameBellows Assembly,valve Positione
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSiemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
StatusCANCELLED
General Characteristics Item DescriptionWITH PILOT; CONSISTS OF BELLOWS ROD,SHELL,2 BELLOWS,SPRING SEAT,PLUNGER NUT,PILOT SPRING,BALL,BASE FORGING,PLUNGER,2 WASHERS,SCREW
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5950-00-080-1377900086-0015 INTERCHANGEABLE
Transformer,audio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5815-00-393-1938SM-B-157524 GROUP 3 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2915-00-920-782511898 INTERCHANGEABLE
Springxlatch
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6685-01-049-7163MDL72G525 INTERCHANGEABLE
Control
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
3040-01-213-00862298-8 INTERCHANGEABLE
Lever,manual Control
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
5310-01-595-477811-898 INTERCHANGEABLE
Nut,self-Locking,hexagon
Konrad Marine Inc Div Konrad Marine
Cross-Reference Index
Part NumberManufacturer
105-3 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
X31438PC14 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
14099-51 PRIMARY Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
X-76178 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
118-98 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
X-76178 PC 16 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
Related Parts
5950-00-080-1377INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
900086-0015
5815-00-393-1938INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SM-B-157524 GROUP 3
2915-00-920-7825INTERCHANGEABLE
SPRINGXLATCH
11898
6685-01-049-7163INTERCHANGEABLE
CONTROL
MDL72G525
3040-01-213-0086INTERCHANGEABLE
LEVER,MANUAL CONTROL
2298-8
5310-01-595-4778INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
11-898

Frequently Asked Questions

What is NSN 4820-01-218-2580?

NSN 4820-01-218-2580 is a Bellows Assembly,valve Positione, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-218-2580?

NSN 4820-01-218-2580 has 6 cross-referenced part numbers: 105-3 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), X31438PC14 (Spx Flow Us, Llc Dba Spx Valves & Controls), 14099-51 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), X-76178 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 118-98 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives) and 1 more.

What NSN replaces 4820-01-218-2580?

There are 6 known substitutes for 4820-01-218-2580: 5950-00-080-1377, 5815-00-393-1938, 2915-00-920-7825 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14099-51?

Key specifications for 14099-51: General Characteristics Item Description: WITH PILOT; CONSISTS OF BELLOWS ROD,SHELL,2 BELLOWS,SPRING SEAT,PLUNGER NUT,PILOT SPRING,BALL,BASE FORGING,PLUNGER,2 WASHERS,SCREW. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-218-2580 still in active supply?

NSN 4820-01-218-2580 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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